The Change-Up is a 2011 American fantasy comedy film produced and directed by David Dobkin, written by Jon Lucas and Scott Moore, and starring Ryan Reynolds and Jason Bateman.
Dave is a married man with three kids and a loving wife, and Mitch is a single man who is at the prime of his sexual life. One fateful night while Mitch and Dave are peeing in a fountain, lightning strikes and they switch bodies. They try to change back to their old lives when they realize each other's life is not what it seems but then find themselves stuck in a situation. The fountain had been removed from that park and they get sent on a wild goose chase looking for it.
The film was released on August 5, 2011, in North America, by Universal Pictures.